| Strain | 13037 |
|---|---|
| Classification | Pleosporales, Pleosporaceae, Curvularia |
| Culture collection | BCRC FU31410 |
| Detection frequency | Low |
| Figure |  Fig. 1 5-day-old colony on PDA  Fig. 2 Curvularia sp. 13037. a–b. Conidiophores and conidia. c. Sporulation on CM (Bars= 5 μm, unless otherwise specified)
Fig. 3 Maximum-likelihood (ML) tree obtained from aligned ITS sequences of the Curvularia sp. 13037 and allied species. |
| Colonies | Colonies on PDA attaining 47-mm at 25 °C after 5 days, cottony, margins entire or undulate, reverse dark olivaceous to black with white margins. |
| Conidiophores | Conidiophores macronematous, arising from both aerial and creeping hyphae at right angles, brown, flexuous, septate, simple, up to 120 µm, 3.5–5 µm wide. |
| Conidiogenous cells | Conidiogenous cells integrated, terminal or intercalary, geniculate, sympodial, with darkened and thickened conidial scars. |
| Conidia | Conidia straight or slightly curved, golden brown, guttulate, with distinct thicken hilum at the base, 3–5(–6) distoseptate, 29–42 × 7.5–11 µm. |
| Note | This species is phylogenetically clustered within a group of species which were previously identified as Bipolaris (with short, straight, distoseptate conidia) and were recently moved to Curvularia. Conidia of strain 13037 are often slightly curved, a character which is not common in this group. The other species in this group having slightly curved conidia are Curvularia ellisii, C. buchloës, and C. beasleyi, but they can be easily distinguished from Strain 13037. Conidia of C. ellisii are significantly wider (21–41 × 12–18 µm) (Danquah, 1975); Conidia of C. buchloës are significantly longer ((34–) 40–69 (–71) × (7–) 8–12 (–15) µm)) (Manamgoda et al., 2015); Conidia of C. beasleyi are significantly smaller ((14–) 26–29 (–34) × (5–) 6.5–7.5 (–9) μm) (Tan et al., 2018) |
| Pathogenicity | Unknown |
| Specimens examined | Taiwan, Taichung City, rice grains (cultivar Tainan 11), Sep 2013, Jie-Hao Ou, 13037 |
| ITS | ATACAATACGAAGGTCGTTCGCGGCTGGACTATTTTATTACCCTTGTCTTTTGCGCACTTGTTGTTTCCTGGGCGGGTTCGCTCGCCACCAGGACCACCATATAAACCTTTTTTATGCAGTTGCAATCAGCGTCAGTATAACAAATGTAAATCATTTACAACTTTCAACAACGGATCTCTTGGTTCTGGCATCGATGAAGAACGCAGCGAAATGCGATACGTAGTGTGAATTGCAGAATTCAGTGAATCATCGAATCTTTGAACGCACATTGCGCCCTTTGGTATTCCAAAGGGCATGCCTGTTCGAGCGTCATTTGTACCCTCAAGCTTTGCTTGGTGTTGGGCGTTTGTCTTTGGCCCGCCAAAGACTCGCCTTAAAACGATTGGCAGCCGGCCTCCTGGTTTCGCAGCGCAGCACATTTTTGCGCTTGCAATCAGCAAAAGAGGACGGCAATCCATCAAGACTCCTTCTCACGTTTGACCTCGGATCAGGTAGGGATACCCGCTGAACTTAA |
| GPD | ATTGGCCGTATCGTCTTCCGCAATGCGTAGGTGTCCTCGAATCCATTGATCCAGTGCGTGTCAAAGCTAATGGTAGCTGCAGCATCGAGCACAACGACGTCGAGATTGTCGCCGTCAACGACCCCTTTATCGAGCCCCACTACGCTGTAAGCACATCCTACTTTTAGACCACCCATGGGCGGAGCAGCACAGGCTAACATCGACACAGGCGTACATGCTCAAGTATGACAGCACACACGGCCAGTTCAAGGGCGACATCAAGGTTGACGGCAACAACCTGACCGTCAACGGCAAGACCGTCCGCTTCCACATGGAGAAGGACCCCGCCAACATCCCATGGAGCGAGACCGGCGCCTACTACGTCGTCGAGTCCACCGGTGTCTTCACCACCACCGAGAAGGCAAAGGCCCATTTGAAGGGTGGAGCCAAGAAGGTTGTCATCTCTGCTCCTTCCGCCGATGCCCCCATGTTCGTCATGGGTGTCAACCACGAGACCTA |